humidity

how can u lower the humidity other than a dehumidifier??

Stronger exhaust fans.

really, you have to ask that queston use common sense or has that been lost over the years

Well... What is your RH ?
In the grow room....
Your intake [to grow] takes air from where?

Dryer air is usually near the ceiling where the air is hotter, and usually dryer, if your intake pulls air in from low, you could move your intake air from high up...suck it down...
In veg, RH can be 10-15 points higher than in Bud...
So what are your numbers...